Stress Corrosion Cracking of X-70 steel in carbonates, solutions

ISBN-13: 9783846534717 / Angielski / Miękka / 60 str.

Alvaro Torres; Sergio Serna; Bernardo Campillo

Opis

The aim of this work was to study the effect of different heat treatments on the stress corrosion cracking (SCC) resistance of X-70 pipeline steel in diluted solutions of NaHCO3 (0.1 M, 0.05 M, 0.01 M, and 0.005 M), and in solutions of NaHCO3 with addition of KCl, CaCl2 and MgSO4-7H2O, using the slow strain rate testing (SSRT) technique,and some heat treatments.The results obtained indicated that the quenched and quenched+tempered conditions are the only ones susceptible to HE and the mechanism of SCC in X-70 pipeline steel increased in most diluted solution of NaHCO3 at 50 C, and was dominated by film rupture an anodic dissolution.

O autorze

Dr. Alvaro Torres Islas achieved his postgraduate degree in chemical engineering from the Faculty of Chemistry-UNAM. He is a researcher in metallurgy and materials oriented to corrosion of metals and alloys assigned to the Autonomous University of Morelos State since 2005. Belong to the National Investigators System (SNI) in Mexico since 2007.